The PureBallast system, developed by Swedish companies Wallenius Waters and Alfa Laval has been approved by UN/IMO. PureBallast is a solution for treating ballast water of ships. The process is checmical-free and imitates nature's own way of treating water. This is the first time a chemical-free solution of this kind gets approval by the IMO. The solution can also be used in other applications, such as cleaning swimming pools.
German shipping company E. R Schiffahrt has already ordered the systems for four of their boats.
Ballast water is a huge environmental problem, with microorganisms and other organisms invading coastal areas where they are non-indigenous.
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